1801252272 has 120 divisors (see below), whose sum is σ = 5093232048. Its totient is φ = 546631680.

The previous prime is 1801252261. The next prime is 1801252283. The reversal of 1801252272 is 2722521081.

It is an interprime number because it is at equal distance from previous prime (1801252261) and next prime (1801252283).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 783028 + ... + 785324.

Almost surely, 2^1801252272 is an apocalyptic number.

1801252272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1801252272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2546616024).

1801252272 is an abundant number, since it is smaller than the sum of its proper divisors (3291979776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1801252272 is a wasteful number, since it uses less digits than its factorization.

1801252272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2350 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 1801252272 is about 42441.1624722980. The cubic root of 1801252272 is about 1216.7224289532.

The spelling of 1801252272 in words is "one billion, eight hundred one million, two hundred fifty-two thousand, two hundred seventy-two".